The leading U.S. intelligence official warned on Tuesday that North Korea could develop a nuclear weapon to strike the United States mainland and will likely be "inevitable."

North Korea has already been accelerating missile testing and successfully conducted the second launch for two weeks. During the same time, the White House reportedly issued a series of heightened warnings about Kim Jong Un's government on testing its missiles, particularly the sixth nuclear test.

Like Us on Facebook

Lt. Gen. Vincent Stewart, the director of the Defense Intelligence Agency, said at a hearing ahead of the Senate Armed Services Committee that there will be severe consequences for leaving North Korea unchecked.

Stewart also said that the regime will likely succeed in testing nuclear-armed missile that has the ability to threaten the United States homeland if it is left on the current trajectory. Additionally, even though it is impossible to predict when the operation will happen, the North Korean government is said to be committed which is highly inevitable.

The intermediate-range ballistic missile (IRBM) of North Korea will be tested on May 14, and aerospace expert John Schilling described it as having a level of performance that is never been seen from a North Korean missile. Furthermore, Schilling said that the missile could possibly reach the U.S. territory of Guam.

The U.S. defense officials also confirmed some claims that the missile has the capability to sustain re-entry within the atmosphere. According to Stewart, using this kind of technology to the intercontinental ballistic missile (ICBM) will only be the remaining barrier in developing a nuclear weapon that could hit the heart of the United States.

The U.S. also asked the United Nations to have new sanctions regarding North Korea's continued missile testings. Following the session on Tuesday, the Security Council wrote in a statement that they have agreed to strictly monitor the situation and take additional actions including sanctions.

Both  South Korea's new president Moon Jae In and President Donald Trump recently said that dispute with North Korea could happen. Meanwhile, North Korea reportedly claims that their weapons are self-defense tools against the actions and provocative speech of the United States in the region.